Galerie d'images
Toutes les images de la base — taxons, formations et intervalles géologiques.
⚠ La fonctionnalité de récupération des images est en cours de test, des images non pertinentes peuvent apparaître.
4,274 image(s)
Representative taxa from the early Campanian Muthmannsdorf fauna from the Grünbach Formation, eastern Austria. A Doratodon carcharidens (Mesoeucrocodylia) mandible (PIUW 2349/57) in dorsal view (photo by Márton Rabi) B Indeterminate azhdarchid (Pterosauria, Azhdarchidae), left humerus (PIUW 2349/102) in anterior view C ‘Megalosaurus pannoniensis’ basal tetanuran (Theropoda, Tetanurae), tooth (PIUW uncatalogued) in lateral view D Mochlodon suessi (Ornithopoda, Rhabdodontidae), right dentary (holotype, PIUW 2349/2) in medial view. Scale bars equal 2 cm in A, B and D and 1 cm in C.
Ferenceratops was initially classified under the ornithopod genus Zalmoxes, until it was found that it more closely resembled an early ceratopsian. Ferenceratops was a small quadrupedal herbivore, growing to 1.5-2 m in body length, likely using the characteristic ceratopsian beak to process vegetation.
Dentaries of selected European rhabdodontomorphs in dorsal and lateral views. (A) Obelignathus septimanicus, holotype MDE D30, right dentary from the 'Grès à Reptiles' Formation, Montouliers (France); (B) Mochlodon vorosi holotype MTM V 2010.105.1, left dentary from the Csehbánya Formation, Iharkút (Hungary; mirrored); (C) Mochlodon suessi, lectotype PIUW 2349/2, right dentary from the Grünbach Formation, Muthmannsdorf (Austria); (D) Zalmoxes robustus holotype NHMUK R3392, right dentary from the Sinpetru Formation, Sânpetru (Romania); (E) Rhabdodon priscus, lectotype MPLM 30, left dentary from the Marnes Rouges Inférieures Formation, la Nerthe (France; mirrored drawing after Matheron; outline based on specimens MPLM 30 and MPLM 31, size estimation based on Matheron and Brinkman); (F) Zalmoxes shqiperorum holotype NHMUK R4900, right dentary from the Sinpetru Formation of Sânpetru (Romania; outline based on the specimen UBB NVZ1-1).
Representative taxa from the Santonian Iharkút fauna from the Csehbánya Formation, Bakony Mountains, western Hungary. A Pannoniasaurus inexpectatus (Squamata, Mosasauroidea), dorsal vertebra (MTM uncatalogued) in dorsal view (photo by Réka Kalmár) B Foxemys trabanti (Pleurodira, Bothremydidae), skull (MTM V 2010.215.1.) in dorsal view (photo by Márton Rabi). C Bicuspidon aff. hatzegiensis (Squamata, Borioteiioidea), left dentary (MTM 2006.112.1.) in medial view (photo by László Makádi) D Basal tetanuran (Theropoda, Tetanurae), tooth (MTM V.01.54) in ?lingual view E Indeterminate abelisaurid (Theropoda, Abelisauridae), pedal ungual phalanx (MTM V 2008.43.1.) in lateral view F Pneumatoraptor fodori (Theropoda, Paraves), left scapulocoracoid (holotype, MTM V 2008.38.1.) in lateral view G Mochlodon vorosi (Ornithopoda, Rhabdodontidae), left dentary (holotype, MTM V 2010.105.1) in lateral view H Bakonydraco galaczi (Pterosauria, Azhdarchidae), mandible (holotype, MTM 2007.110.1) in dorsal view I Iharkutosuchus makadii (Eusuchia, Hylaeochampsidae), skull (holotype, MTM 2006.52.1) in dorsal view J Hungarosaurus tormai (Ankylosauria, Nodosauridae), right dentary (MTM 2007.25.2) in lateral view K Bauxitornis mindszentyae (Aves, Enantiornithes), left tarsometatarsus (holotype, MTM V 2009.38.1) in anterior view L Ajkaceratops kozmai (Ceratopsia), fused rostral and premaxillae (holotype, MTM V 2009.192.1) in lateral view. Scale bars: 2 cm in A, V, G, H, I, J; 1 cm in D, E, F, K, L; 1 mm in C.
Representative taxa from the latest Campanian–Maastrichtian faunas from Transylvania, western Romania. A–B Nidophis insularis (Serpentes, Madtsoiidae), articulated vertebrae (LPB (FGGUB) v.547/2) in left lateral (A) and dorsal (B) views (Densuş-Ciula Formation, Tuştea, Haţeg Basin; photo by Ştefan Vasile) C Allodaposuchus precedens (Eusuchia, ?Hylaeochampsidae), skull (PSMUBB V 438) in dorsal view (Sebeş = Şard Formation, Oarda de Jos, southwestern Transylvanian Basin; photo by Vlad Codrea/Massimo Delfino) D Theriosuchus sympiestodon (Mesoeucrocodylia, Atoposauridae), right maxilla (MCDRD 793) in lateral view (Sînpetru Formation, Sînpetru, Haţeg Basin) E–F Indeterminate titanosaur (?Magyarosaurus dacus) (Sauropoda, Titanosauria), isolated osteoderm (LPB (FGGUB) R.1410) in dorsal (E) and lateral (F) views (Sînpetru Formation, Sînpetru, Haţeg Basin) G Indeterminate ornithuran bird (Aves, Ornithurae), incomplete left tibiotarsus (LPB (FGGUB) R.1902) in anterior view (Densuş-Ciula Formation, Vălioara, Haţeg Basin) H Balaur bondoc (Theropoda, Dromaeosauridae), articulated left distal hindlimb (EME PV.313) in lateral view (Sebeş = Şard Formation, Sebeş-Glod, southewestern Transylvanian Basin; photo by Mick Ellison) I Zalmoxes robustus (Ornithopoda, Rhabdodontidae), right dentary (NHMUK R.3407) in medial view (Sînpetru Formation, Sînpetru, Haţeg Basin) J Telmatosaurus transsylvanicus (Hadrosauria), right maxilla (MFGI unnumbered) in lateral view (Sînpetru Formation, Sînpetru, Haţeg Basin) K Indeterminate nodosaurid – Struthiosaurus transylvanicus or new taxon – (Ankylosauria, Nodosauridae), isolated tooth (LPB (FGGUB) R.2182) in medial view (Sînpetru Formation, Sînpetru, Haţeg Basin) L Barbatodon transylvanicus (Multituberculata, Kogaionidae), right maxilla (LPB (FGGUB) M.1635) in medial view (Sînpetru Formation, Pui, Haţeg Basin). Scale bars equal 1 mm in A, B; 5 mm in K; 1 cm in G, L; 2 cm in D; and 5 cm in C, E, F, H, I, J.
Rates of skeletal character evolution in the skull and postcranial skeleton of hadrosauroids. Cladograms illustrate the results from branch likelihood tests for two morphological partitions: skull (cranium and mandible) (A) and postcranial skeleton (B). In both cladograms, results from the branch likelihood tests are summarized on a strict consensus tree derived from four separately analyzed MPTs, each with 100 dating replicates (a total of 400 Hedman-dated phylogenies). Pie charts on branches illustrate the proportion of dating replicates that showed significantly high rates (red), slow rates (blue), or nonsignificant average rates (white). No pie charts are plotted on branches that showed nonsignificant rates in 100% of dating replicates. Branches that showed high rates (red) in more than 50% of dating replicates are doubled in length. See the Supplementary Material for Hedman-based results plotted separately for each MPT (Supplementary Fig. S2) and for results using the MBL dating method (Supplementary Fig. S3). Silhouettes were created by Scott Hartman and were downloaded from http://phylopic.org (Creative Commons license CC BY 3.0).
Strict consensus of 54 most parsimonious trees resulting from the maximum parsimony analysis implemented in the software TNT, showing the suggested systematic position of Zhanghenglong yangchengensis within Hadrosauroidea.
Figure 6. Hadrosaurs of North America, exemplied by the selection of skulls of valid nominal genera. The grey shadows on the skulls represent the reconstructed parts. Highlighted names indicate the unique genera for each region
Media belonging article cited on Wikipedia with DOI: 10.1371/journal.pone.0098821
Numbers above nodes represent bootstrap values, whereas those beneath nodes represent Bremer decay values. Bootstrap values lower than 20 and Bremer decay values less than 2 are not shown.
Composite skeletal reconstruction of Lewisuchus admixtus, all specimens overlap
Life reconstruction of Lewisuchus admixtus. Human scale removed.
Phylogenetic affinities of Saltriovenator and evolution of the hand in Theropoda. Reduced strict consensus of the shortest trees found by the phylogenetic analysis after pruning of Lewisuchus and Teleocrater. Numbers at nodes indicate decay index. Inferred manual phalangeal formula for selected nodes indicated below clade names. Hands of representative members of the avian stem (bold names) in extensor view (Herrerasaurus in flexor view), medial side at left, missing elements in white based on ancestral states inferred at least inclusive node containing the taxon. Red star indicates loss of metacarpal V, blue stars indicate multiple independent losses of metacarpal IV among tetanurans. Drawings by A. Cau.
Ahvaytum bahndooiveche size comparison based on the data shown on Lovelace et al., 2025. Yellow dot size & weight its estimated using Mbiresaurus raathi (Griffin et al., 2022) as reference. Green dot size & weight its estimated using Saturnalia tupiniquim (Langer et al., 1999) as reference. Size estimation might change with more new material description in posterior studies.
Fossil of Suevoleviathan- Took the picture at Museum am Lowentor, Stuttgart
Fossil of Suevoleviathan- Took the picture at Museum am Lowentor, Stuttgart
Fossil of Suevoleviathan, an extinct reptile- Took the picture at Museum of Paleontology at Tuebingen
Fossil of Suevoleviathan, an extinct reptile- Took the picture at Museum of Paleontology at Tuebingen
Skeleton of Tuarangisaurus at the Museo Argentino de Ciencias Naturales Bernardino Rivadavia
Plesiosaurus of the Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"
Kronosaurus queenslandicus attacking Eromangasaurus australis (formerly classified as Tuarangisaurus).
A family tree, showing the phylogenetic position of Pliosauroidea genera.
Muraenosaurus? Reedii, Sp. Nov. and Tricleidus? Laramiensis Knight, American Jurassic Plesiosaurs
Muraenosaurus? Reedii, Sp. Nov. and Tricleidus? Laramiensis Knight, American Jurassic Plesiosaurs
Muraenosaurus? Reedii, Sp. Nov. and Tricleidus? Laramiensis Knight, American Jurassic Plesiosaurs
Muraenosaurus? Reedii, Sp. Nov. and Tricleidus? Laramiensis Knight, American Jurassic Plesiosaurs
Anzu is a fairly large caenagnathid oviraptorosaurian dinosaur that grew to nearly 4 m in length, and weighed 200-300 kg. It was a bipedal dinosaur and was covered in feathers, with a large sloping crest atop its head. Typical of oviraptorosaurs, Anzu had a short toothless beak, an adaptation that suggests it was most likely herbivorous or possibly omnivorous.
MRF 319, a partial oviraptorosaurian skeleton referred to Anzu wyliei. (A) Skeletal reconstruction in left lateral view, with preserved bones in gray and bones represented in other Anzu specimens in white (hatching indicates heavily reconstructed portions of the ilia of CM 78001). Middle-posterior (ninth?) cervical vertebra in (B) anterior, (C) left lateral, and (D) dorsal views. Posterior (11th?) cervical vertebra in (E) anterior, (F) left lateral, and (G) dorsal views. Posterior (12th?) cervical vertebra in (H) anterior, (I) left lateral, and (J) dorsal views. Anteroposteriorly crushed left radius in lateral (K) and anterior (L) views. Mediolaterally crushed left ulna in lateral (M) and anterior (N) views. (O) Partial left scapulocoracoid in lateral view. Dorsal rib in anterior (P) and posterior (Q) views. Abbreviations: acr, acromial process; cr, cervical rib; dip, distal processes; pat, pathology; pf, pneumatic fossa. Scale bars = 50 cm in A; 1 cm in B–Q.
MRF 319, a partial oviraptorosaurian skeleton referred to Anzu wyliei. Skeletal reconstruction in left lateral view, with preserved bones in gray and bones represented in other Anzu specimens in white (hatching indicates heavily reconstructed portions of the ilia. Scale bar = 50 cm (19.7 in)
Restored skeleton of Anzu wyliei (previously labelled as a specimen of Chirostenotes)
Restored skeleton of Anzu wyliei (previously labelled as a specimen of Chirostenotes)
Halisaurus sp. from the Quiriquina Formation. Originally thought to represent Plotosaurus.
Highly derived mosasaur from the Moreno Formation that could grow to large sized. Converges with basal ichthyosaurs in bauplan- and has tuna-like swimming motion.
Plotosaurus bennisoni is a mosasaur from the Upper Cretaceous (Maastrichtian) North America.
Plotosaurus skeletal mount in Natural History Museum of Los Angeles County, California, United States.
Mounted skeleton of the highly derived California mosasaur Plotosaurus bennisoni (CIT 2750) on display at the Natural History Museum of Los Angeles County
Mounted skeleton of Plotosaurus from the Los Angeles County Natural History Museum; see the original image
Juvenile Gorgosaurus TMP 2009.12.14 preserving stomach contents. Photographs of specimen in (A) right lateral view and (B) left anterolateral view. (C) Interpretive illustration of specimen in right lateral view. Skeleton consists of a nearly complete skull, the left side of the body and limbs, and a nearly complete pelvis. Red rectangle delineates location of stomach contents. (D) Histological photomicrograph of tibia showing the presence of five lines of arrested growths and two annuli (marked by asterisks), indicating that the individual was between 5 and 7 years old. Scale bars, 50 cm (A) to (C) and 1 mm (D).
Skeletal reconstructions of Dinosaur Park Formation caenagnathids. Skeletal reconstructions of Citipes elegans (left), Chirostenotes pergracilis (middle), and Caenagnathus collinsi (right), showing variation in skeletal representation and body size. Previously referred material is indicated in white and newly referred material is indicated in red for each taxon. Blue asterisks indicate elements that have been histologically sampled for each taxon. Citipes elegans: dentaries, metatarsal IV; Chirostenotes pergracilis: dentaries, tibia; Caenagnathus collinsi: pubis.
Skeletal reconstruction of Citipes elegans. Previously referred material is indicated in white and newly referred material is indicated in red.
UALVP 59606, metatarsal IV of Citipes elegans. Left metatarsal IV and fused distal tarsal IV of UALVP 59606 in anterior (A), lateral (B), posterior (C), medial (D), proximal (E) and distal (F) views. Red line indicates plane of section in Figure 15. Abbreviations: cond, condyle; dt IV, distal tarsal IV; lclf, lateral collateral ligament fossa; lp, lateral process; mclf, medial collateral ligament fossa; mt II, contact for metatarsal II; mt III, contact for metatarsal III; mt V, contact for metatarsal V; mt IV, metatarsal IV; m.tc, attachment for m. tibialis cranialis; pdp, proximodorsal process; plr, posterolateral ridge; pprt, posterior protuberance.
Osteohistology of UALVP 59606, metatarsal IV of Citipes elegans. Overview of histological thin section of UALVP 59606 in plane-polarized (A) and cross-polarized (B) light, showing locations of close-up images. Detail (C) of cortex showing predominantly primary fibrolamellar bone with longitudinal-reticular vascularity, endosteal layer, and cyclical growth marks (arrows), under plane-polarized light. Close-up (D) of well developed endosteal layer on the medullary cavity, showing sec- ondary excavation by simple vascular canals, under cross-polarized light. Close-up (E) of tightly packed cyclical growth marks (arrows) near the periosteal surface of the cortex, under plane-polarized light. Close-up (F) of periosteal surface of cortex, showing avascular parallel-fibered bone indicating an incipient external fundamental system (double ended arrow) with three LAGs (arrows). Abbreviations: efs, incipient external fundamental system; el, endosteal lamellae; hb, Haversian bone; pfb, parallel-fibered bone; radv, radial simple vascular canal; so, secondary osteon.
Tarsometatarsi of caenagnathids from the Upper Campanian Dinosaur Park Formation, Dinosaur Provincial Park, Alberta, Canada. A. TMP 1993.036.0181 (Chirostenotes pergracilis). B. TMP 1982.016.0006 (Citipes elegans). C. ROM 781 (Citipes elegans holotype). D. TMP 1996.012.0141 (Citipes elegans). Tarsometatarsi in proximal (A1–D1), anterior (A2–D2), and posterior (A3–D3) views.
Plate XII(XIX). Fig. 1. Coelophysis bauri COPE. Sacrum, consisting of three vertebrae and last dorsal vertebra. COPE’s original. Triassic, New Mexico. Preserved in American Museum of Natural History, New York. Nat. size, from a cast in Tübingen. a, right lateral view; b, left lateral view; c, ventral view. Fig. 2. Thecodontosaurus skirtopodus SEELEY sp. Right humerus. Original in Vienna Hofmuseum (Coll. ADLER 1886). Upper Karroo, Cape Colony, South Africa. 1/2 nat. size, from a cast in Tübingen. Fig. 3. Same. Ditto. Proximal end of a right humerus in posterior view. 1/2 nat. size (the lateral part is missing). Fig. 4. Same. Ditto. Distal end of a left humerus in anterior view. 1/2 nat. size. Fig. 5. Same. Ditto. Distal end of a left femur in posterior view. 1/2 nat. size. Fig. 6. Same. Ditto. Proximal end of a left tibia, lateral view. 1/2 nat. size. Fig. 7. Thecodontosaurus browni SEELEY sp. Left femur in posterior view. SEELEY’s original. From the Stormberg Beds of the Telle River near Aliwal North, Cape Colony, South Africa. (From casts in the British Museum and Tübingen.) 1/2 nat. size. Fig. 8. Same. Ditto. Right femur, medial view.